Folding mechanism



Nov. 6, m3. mmmz H. M. BARBER FOLDING MECHANISM Filed July 13 1921 2KJung/ 72252 Patented Nov. 6, 1923. v

UNEE

tenses HOWARD M. BAR-BER. OF STONINGTON, CONNECTICUT, ASSIGNOR TO C. B.COTTRELL & SONS COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

FOLDING MECHANISM.

Application filed July 13,

' acting to make the three parallel cross folds,

one of said cylinders being arranged to coact with one of the othercylinders to make the second fold and with another of the cylinders tomake the third fold.

A practical embodiment of my invention is represented in theaccompanying drawings, in which,

Fig. 1 represents a diagrammatic view of so much of a sheet foldingmachine as ineludes my invention.

The web feed roll is denoted by 1 and the pair of coacting rotarycutters by 2 and 3, the knives 4.- and 5 of which are arranged to seversheets of a predetermined length. The mechanism forimparting threeparallel cross folds to the sheets includes two pairs of rotary foldingcylinders, the first cylinder being denoted by 6; the second cylinder by7; the third cylinder by 8, and the fourth cylinder by 9. The firstcylinder 6 is shown as provided with. a set of head grippers 10 and afloating folding blade 11 In the embodiment illustrated. the secondcylinder 7 is shown as being provided with two sets of floating foldingjaws 12 and 13, arranged to successively coact with the folding blade11. to impart a first cross fold to successive products. This secondcylinder 7 is also shown as provided with two floating folding blades 14and 15. The third folding cylinder 8 is shown as provided with two setsof floating folding jaws 21 and17 which are arranged to coact with theirrespective blades 14 and on the second folding cylinder 7 to impartasecond parallel cross fold to successive products. The fourth cylinder 9is provided with the head grippers 18 and also with a floating foldingblade 1.9.. The third folding cylinder 8 is also provided with. two setsof floating folding aws 20 and 16, which are arranged to successivelycoact with the folding blade 19 on the fourth folding 1921. Serial No.434,387.

cylinder 9 to impart the third parallel cross fold to successiveproducts. Coacting friction pulleys 22 and 23 are located between therotary cutters 2, 3 and the first pair of folding cylinders 6, 7 to feedthe sheets in register as they pass from the cutters to the first pairof folding cylinders.

The rotary delivery cylinder 24: is provided with head grippers 26 forcoaction with the set of grippers 16 on the third folding cylinder 8 totake one of the thrice folded products therefrom. A second rotarydelivery cylinder 'is provided with head grippers 27 arranged to coactwith the grippers 20 on the third folding cylinder 8 to take the nextsucceeding thrice folded product therefrom. By this arrangement theproduct may be delivered to two delivery points 28 and 29.

Rotary slitters 30 and 31 are provided for slitting the thrice foldedproducts longitudinally, said slitters being arranged to 00- act withtheir respective delivery cylinders 24: and 25.

Friction pulleys 32 and 33 may be provided in position to coact withtheir respective delivery cylinders 24 and 25, for ensur ing the properdelivery of the folded products to the two delivery points 28 and 29.

I have not shown the means for rotating the several cylinders nor themeans for operating the floating folding blades and jaws or the meansfor operating the head grippers as all of these means may be of wellknown or approved construction, readily understood by persons skilled inthis art.

- It is evident that various changes may be resorted to in theconstruction, form and arrangement of the several parts without deiiarting from the spirit and scope of my invention; hence I do not wishto limit myself to the particular embodiment herein shown and described,but

lVhat I claim is 1. In a sheet folding machine, mechanism operative tomake three parallel cross folds including four rotary folding cylinders,the first cylinder coact ing with the second cylinder to make the firstfold, the second cylnder and the fourth cylinder coacting with the thirdcylinder to make the second and third folds on the third cylinder.

2. In a sheet folding machine, mechanism operative to make threeparallel cross folds including four rotary folding cylinders, the

first cylinder coacting withthe second cylinder to make the first fold,the second 7 cylinder coacting with the third cylinder to make the"second'fold andthe fourth cylindercoacting with the third cylinder to'make the third fold on the third cylinder.

3, In a sheet folding machine,mechanism operative to make three parallelcross folds including two pairs of rotary folding cyl-' inders, onecylinder of the first pair having a folding blade and the other cylinderhaving a plurality of sets of jaws tocoact therewith and also aplurality of folding blades, one cylinder of the second, pair hav 'ing afolding blade and the other cylinder having a plurality of sets of jawsto coact therewith andlalso a plurality of Sets of jaws to coact withtheir respective folding 7 first pair,

blades on the second named cylinder of the 4:. Ina i sheet foldingmachine nismoperatlve to make three parallel cross folds including twopairs of rotary folding cylinders, one cylinder of r the first pairhaving a'folding blade and the other cylinderlhaving two sets of jaws tocoact therewith and also two folding blades, one cylinder of the vsecondpair having a folding blade'andthe other cylinder having two setsof jawsto coact therewith and also'two sets of jaws to coact with theirrespective folding blades on the second named cylinder of the firstpair.

5. In a sheet folding machine, mechanism operative to make threeparallel cross folds including four rotary folding cylinders, the firstcylinder coacting with the second cyl-:

inder to make the first fold on the second cylinder, the second cylindercoacting with the third cylinderto make thesecond fold on the thirdcylinder and the fourth cylinder coacting with the third cylinder tomake the third fold'on the third cylinder,

; and a rotary delivery cylinder coacting with the third cylinder totake the thrice folded 'u'oduct therefrom.

. 6. In a sheet foldingmachine, mechanism operative to mak threeparallel cross folds including four rotary folding cylinders, the

first cylinder enacting with the second cyl-' inder to make the firstfold on the second cylinder, the second cylinder coactingwitli' thethird cylinderto make the second fold onthe third cylinder-{and thefourth cylinder coafcting with the third cylinder to' 'makethe thirdfold on the third cylinder,

a rotary delivery cylinder coacting with the third cylinder to take thethrice folded product therefrom, and means for slitting the product onthe delivery cylinder;

1 7 In a sheetfolding machine, mechanism operative to make threeparallel cross folds including four rotary folding cylinders, the firstcylinder coacting with the second cylinder to make the firstfold on thesecond mecha .cylinder, the second cylinder 'coacting with the thirdcylinder to make the second fold.

on the third cylinder and the fourth cylinder coacting with the thirdcylinder .to

make the third fold. on the third cylinder,

and a plurality of rotary delivery cylinders ooacting with the thirdcylinder to take the thrice folded products therefrom; 1

8. In a sheet folding machine, mechanism operative to make threeparallel cross, folds including four rotary folding cylinders,the

first cylinder coacting with the second'cyl inder to make the firstfold, the second cylinder coacting with the third cylinder to makthe-secondfold and the fourthcylinder coacting with the third. cylinderto make the third fold, a plurality of rotary delivery cylinderscoacting with the third therefrom, and means for slitting the product onthe delivery cylinders;

9. In a sheet foldingmaohine, mechanism operative, to make threeparallel cross folds including four rotary folding cylinders,the

first cylindercoacting with the second cylinder to make the first foldon the second cylinder, the second cylinder coacting with the thirdcylinder to make the second fold on the third cylinder and the fourthcylinder coacting with the third cylinder to make the third fold on thethird cylinder,

and two rotary delivery cylinders coacting with the third cylinder totake the thrice Ifolded products therefrom.

10.111 a sheet :foldingmachine, mechanism operative "to makethreeparallel cross vcylinder to take the thrice folded products 11. In asheet folding machine, two rotary i delivery cylinders, each having aset of grip-l pers, mechanismpperative. to make three parallel crossfolds including two pairs of rotary folding cylinders, one cylinder ofthe first pair having a foldingblade and the other cylinder having twosets of jaws to coact therewith andalso two folding blades,

one cylinder of the second pair having a folding blade and the othercylinder having a set of jawsto coact therewith and with theirrespective grippers on the delivery cylindera-and also two ;setS of jawsto coact 1 2. In a sheet folding machinetwo rotary delivery cylinders,each having a set of grip pers, mechanism operative 'to make three withtheirrespective folding blades on the I second named cylinder of thefirst pair.

parallel cross folds including two pairs of rotary folding cylinders,one cylinder of the first pair having a folding blade and the othercylinder having two sets of jaws to coact therewith and also two foldingblades, one cylinder of the second pair having a folding blade and theother cylinder having a set of jaws to coact therewith with theirrespective grippers on the delivery cylinders, and also two sets of jawsto coact with 10 their respective folding blades 011 the second namedcylinder of the first pair, and means for slitting th products on thedelivery cylinders.

In testimony, that I claim the foregoing 15 as my invention, I havesigned my name this eighth day of July, A. D. 1921.

HOWARD M. BARBER.

